Mighty, contrary to popular belief, was never a member of the Chaotix in the game continuity. Mighty's first game appearance was two years before the likes of Espio and Charmy appeared. Furthermore, one of the instruction manuals for Knuckles' Chaotix states that he was merely visiting the Newtrogic High Zone before it was converted by Dr. Eggman.

In Sonic Heroes, the Chaotix were reinvented with Vector, Charmy and Espio all being members of a detective agency. A couple more things were altered, and Mighty was not included. He was planned to be on a team with Ray and Metal Sonic, but this was ultimately scrapped.

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Game appearances

Mighty has only appeared in three video games. His first was the arcade game SegaSonic the Hedgehog along with another one-game character, Ray the Flying Squirrel. Here, his best friend, none other than Sonic himself, and Ray, were all being held captive by Dr. Eggman, and the game revolved around the trio escaping while avoiding the death-traps of Eggman's Prison Island.

His second was the Sega 32X game Knuckles' Chaotix. In this game, Mighty was simply there when Dr. Eggman came and trashed the place searching for the Chaos Rings. Merely he is only temporary helping the Chaotix because he wants to. Perhaps it also has something to do with his prior encounters with Eggman. He may have even only ended up in the game simply to keep Sonic out and away from the spot light.

After 23 years of absence, Mighty finally returns as a playable character alongside Ray in Sonic Mania Plus, a definitive version of Sonic Mania. In this game, Mighty has a new move known as the Hammer Drop, which is a downward slam attack, and his shell can protect him from enemy attacks whenever he is curled up. He can also bounce off spikes harmlessly, but only once per jump. In Encore Mode, he is trapped in a capsule with Ray in Angel Island Zone and has to be rescued by Sonic.

Personality and traits

Chaotix's instruction manual initially fleshed out some details about his personality, such as having great strength. However, the only way he demonstrated the so-called strength, is his wall-kick move, a move which was later given to Sonic in Sonic Unleashed and Super Smash Bros. Brawl, possibly in subtle reference to Mighty. It also reveals he is a pacifist, just like Tikal and Cream the Rabbit.

His appearances in Sonic Mania Plus and Sonic Mania Adventures further fleshed him out, explaining that despite being a pacifist, he will only fight if he has to, such as when he has to protect those he cares about. He has also proven his strength by throwing rocks bigger than him. Like all armadillos, Mighty's shell is incredibly sturdy, which gives him protection against enemy attacks and spikes as long as he is curled up in a ball, and can even withstand a fierce attack from Metal Sonic.

Mighty in other media

Mighty has been the strength both in the Fleetway and Archie universes. He has acted as a friendly rival to Espio. In the Archie universe, he went on a solo adventure to find Ray and in the Fleetway universe, he had some trouble to keep his half-crazed father, Blockhead Bill, under control.

Mighty has also been featured in Sonic Mania Adventures, where he was apparently missing, but showed up in time to save Ray from being attacked by Metal Sonic. With the two reunited, they made their way to Eggman's base and helped Sonic and Tails fight a supercharged Metal Sonic.